217156860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{38917}}^1$

素因数の和:38963

約数の個数: 72

約数和(自身を含む): 679975296

約数和(自身を除く): 462818436

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 38917, 77834, 116751, 155668, 194585, 233502, 350253, 389170, 467004, 583755, 700506, 778340, 1167510, 1206427, 1401012, 1751265, 2335020, 2412854, 3502530, 3619281, 4825708, 6032135, 7005060, 7238562, 10857843, 12064270, 14477124, 18096405, 21715686, 24128540, 36192810, 43431372, 54289215, 72385620, 108578430, 217156860]

約数ペア:

[(1, 217156860), (2, 108578430), (3, 72385620), (4, 54289215), (5, 43431372), (6, 36192810), (9, 24128540), (10, 21715686), (12, 18096405), (15, 14477124), (18, 12064270), (20, 10857843), (30, 7238562), (31, 7005060), (36, 6032135), (45, 4825708), (60, 3619281), (62, 3502530), (90, 2412854), (93, 2335020), (124, 1751265), (155, 1401012), (180, 1206427), (186, 1167510), (279, 778340), (310, 700506), (372, 583755), (465, 467004), (558, 389170), (620, 350253), (930, 233502), (1116, 194585), (1395, 155668), (1860, 116751), (2790, 77834), (5580, 38917)]